[chbot] Robotics Group meeting, Monday 21 Dec 2020, 6:30pm, 5 Idris Road

[Mark Atherton]

Hello everyone,

Good turnout with 19 attendees, and lots of huddles-of tech-talk. $30 + 
change (in gold, and flat-money) collected and transferred into the 
robotics loose-change jar (for later banking).

All sales from the trading table should go into the brown box on the 
wall, and are directly for the benefit of our host club, NZART Branch 05.

Equipment donations are welcome for the trading table, but no CRT based 
product, printers, toner or items that are likely to be a disposal burden.

With thanks on behalf of the group,

Have a happy and safe Christmas.

Mark Atherton

============

Mark started off with a brief rundown with a home-made planar triode 
inside a 20 litre Bell-Jar.

William brought in several larger-than-life LED displays, associated 
drive electronics, and controllers.

Rudy gave us an update on the massive project called ‘Moving Molten 
Media’; quite a mission, but sounds like it is progressing. Mark found 
two skips loaded with industrial shelving one of which MM have legally 
acquired and erected in their new showroom.

Bevin concluded his series of compiler-construction lectures, this one 
on the topic of debuggers. Thank you for taking time with this 
undertaking Bevin, it has been quite a journey !!

Peter talked about progress of his modified switched mode power supply, 
based on a low cost stick-welder.

Paul brought in a low cost modular, battery powered soldering iron (can 
you post product details please Paul).

Graeme talked about his spark eroder, and new PSU

Many thanks to Trevor for locking up.